| 24451 | Maranunggu | kiña | | | Tryon (1970) | |
| 28438 | Martuthunira | ngaliwawu | | | Dench (1995) | |
| 39431 | Mauwake | yiena | | | Berghäll (2010) | |
| 33589 | Mauwake | y- | | | Berghäll (2010) | |
| 33592 | Mauwake | yiar | | | Berghäll (2010) | |
| 33591 | Mauwake | (y)i | | | Berghäll (2010) | |
| 33590 | Mauwake | yiena | | | Berghäll (2010) | |
| 48651 | Mavea | -(i)da | | | Guérin (2011) | |
| 56989 | Mayogo | naanɨ́ | | | Sawka (2001) | |
| 56473 | Mbato | lo˩˧ | | | Grassias and Bolé-Richard (1983) | |
| 58425 | Mbelimbe | ti˧ | | | Neukom (2004) | |
| 24115 | Mblafe | ⁿdene | | | Doehler, Christian () | |
| 43988 | Mbugu (Inner Dialect) | kánu | | | Mous (2003) | |
| 44036 | Mbugu (Normal Dialect) | -etú | | | Mous (2003) | |
| 60059 | Mekens-ICR-LB | ki- | | | Galucio (2001) | |
| 60813 | Mekens-ICR-RH | ki- | | | Vilacy (2001) | |
| 60429 | Mekens_ICR_TCC | ki | | | Galucio (2001) | |
| 60203 | Mekens-ICR-WB | kise | | | Vilacy Galucio, Ana. 2001 () | |
| 41351 | Mende | nihi | | | Hoel et al. (1994) | |
| 35394 | Menya | neqä | | | Whitehead (2004) | |
| 42647 | Meriam | meriba | | | Piper (1989) | |
| 50847 | Mewati | həm | | | Gusain (2003) | |
| 40286 | Meyah | mifmin | | | Gravelle (2004) | |
| 39805 | Mian | níb | | | Fedden (2007) | |
| 30686 | Mian | níb | | | Fedden (2007) | |
| 43892 | Modern Hebrew | -ˈɛnu | | | Glinert (1989) | |
| 31097 | Moken | kamoy | | | Veena (1980) | |
| 31098 | Moken | ʔetaʔ | | | Veena (1980) | |
| 46667 | Mombum | numa | | | Boelaars (1950) | |
| 48843 | Mongolian (Halh Dialect) | bidnii | | | Gaunt and Bayarmandakh (2004) | |
| 50043 | Mono | -ra | | | Evans (2015) | |
| 45811 | Morisyen | nu | | | Baker (1972) | |
| 43639 | Moroccan Arabic | -na | | | Harrell (1962) | |
| 35122 | Moskona | mifmin | | | Gravelle (2010) | |
| 60909 | Mpakwithi | bumɽu | | | Dixon (1981) | |
| 61812 | Mpur | e- | | | Odé (2002) | |
| 40655 | Mufian | apé'i- | | | Conrad et al. (1978) | |
| 52555 | Muinane | mo- | | | Walton, Hensarling and Maxwell (2000) | |
| 57133 | Mumuye (Zing Dialect) | wò | | | Shimizu (1983) | |
| 34719 | Muna | -ntoomu | | | van den Berg (1989) | |
| 60299 | Mundari-ICR-KQ | abuaʔ | | | Osada (1992) | |
| 60011 | Mundari-ICR-LB | aleaʔ | | | Osada (1992) | |
| 60483 | Mundari_ICR_TCC | abuaʔ | | | Osada (1992) | |
| 59188 | Mungbam (Abar Dialect) | sɔ˦ | | | Lovegren (2013) | |
| 59234 | Mungbam (Biya Dialect) | sə˥ | | | Lovegren (2013) | |
| 59281 | Mungbam (Missong Dialect) | sə˦ | | | Lovegren (2013) | |
| 59130 | Mungbam (Munken Dialect) | sə˦ | | | Lovegren (2013) | |
| 59329 | Mungbam (Ngun Dialect) | sə˥ | | | Lovegren (2013) | |
| 53734 | Murui Huitoto | kaɨ | | | Piñeros and Roselli (2000) | |
| 25470 | Muruwari | ngarraka | | | Oates (1988) | |
